Louis Garneau Men's Transition 2 Mitts 100% Nylon, Palm:Synthetic Leather Imported Cosmo Lite DP : Ultra light, packable, waterproof SOLARball upper hand insulation SOLARfilm palm insulation: Thin and warm Mega Heat RX palm lining: Keeps warmth inside Patented Ergo Air concept: Evacuates palm moisture and contributes to stabilize hand temperature